Electromagnetic handwriting tablet

Abstract

The utility model discloses an electromagnetic handwriting board, it includes the cover plate, the surface shell, the mainboard, the pen sleeve, the bottom shell, silica gel pad and fastener, the mainboard is arranged in the cavity that the surface shell is closed with bottom shell and is fixed through fastener, and the silica gel pad is connected at the bottom edge of bottom shell, and the pen sleeve is arranged at the side of surface shell, and the mainboard is integrated electromagnetic induction module, signal processing module and USB interface module through welding or insertion, and the cover plate is arranged in the surface shell and is located the surface of electromagnetic induction module. Advantage: it has the advantage that realizes positioning accurate, power supply stable and strong protection.

Description

Technical Field

[0001] This utility model relates to the field of handwriting input device technology, and more specifically, to an improvement of an electromagnetic handwriting tablet. Background Technology

[0002] Electromagnetic writing tablets are widely used in digital office and education settings because their writing experience closely resembles that of real pen and paper. However, existing electromagnetic writing tablets suffer from problems such as cumbersome assembly, insufficient protection, and low component positioning accuracy, which affect user experience and product lifespan. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an electromagnetic handwriting tablet that offers advantages such as precise positioning, stable power supply, and strong protection, thereby solving the problems of cumbersome structural assembly, insufficient protection performance, and low component positioning accuracy.

[0004] (II) Technical Solution To achieve the aforementioned advantages of optimized structural adaptability, precise positioning, stable power supply, and strong protection, the specific technical solution adopted by this utility model is as follows: It includes a cover plate, a front shell, a main board, a pen sleeve, a bottom shell, a silicone pad, and fasteners. The main board is disposed in the cavity formed by the front shell and the bottom shell being fastened together and is fixed by fasteners. The silicone pad is connected to the bottom edge of the bottom shell. The pen sleeve is disposed on the side of the front shell. An electromagnetic induction module, a signal processing module, and a USB interface module are integrated on the main board by welding or plugging. The cover plate is disposed inside the front shell and is located on the surface of the electromagnetic induction module.

[0005] Furthermore, the cover plate is made of high-transmittance electromagnetic induction glass or PET induction film, and its edges are attached to the inner wall of the shell.

[0006] Furthermore, the faceplate is an injection-molded part with a snap-fit ​​flange on its edge that matches the snap-fit ​​groove of the bottom shell, and a power button is also provided on the surface of the faceplate.

[0007] Furthermore, the bottom shell is an injection-molded part with several grooves at the bottom. The silicone pad is fixed in the grooves by adhesive bonding. The bottom shell is also provided with threaded holes that are compatible with fasteners. The bottom of the bottom shell is also provided with a battery holder that is connected to the motherboard.

[0008] Furthermore, the fasteners are cross-slot screws, evenly distributed along the edges of the cover plate and the shell.

[0009] (III) Beneficial Effects Compared with the prior art, this utility model provides an electromagnetic handwriting tablet with the following advantages: The motherboard features a multi-module integrated design, resulting in a short signal transmission path and rapid signal processing response. The dual power supply mode, consisting of a battery holder and a USB interface module, caters to both mobile use and continuous power needs, making it suitable for a wider range of scenarios. The silicone pad on the bottom of the case provides anti-slip and cushioning effects, reducing device collision damage and extending the lifespan of core components such as the motherboard. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is an exploded view of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is a rear view of the present invention; Figure 4 This is a bottom view of the present invention.

[0012] In the diagram: 1. Cover plate; 2. Front shell; 3. Main board; 4. Pen sleeve; 5. Bottom shell; 7. Silicone pad; 6. Fastener; 21. Power button; 31. Electromagnetic induction module; 32. Signal processing module; 33. USB interface module; 51. Battery holder. Detailed Implementation

[0013] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0014] According to an embodiment of the present invention, an electromagnetic handwriting tablet is provided.

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an electromagnetic writing tablet according to an embodiment of this utility model includes a cover plate 1, a front shell 2, a main board 3, a pen sleeve 4, a bottom shell 5, a silicone pad 7, and fasteners 6. The main board 3 is disposed within the cavity formed by the front shell 2 and the bottom shell 5 and is fixed by the fasteners 6. The silicone pad 7 is connected to the bottom edge of the bottom shell 5. The pen sleeve 4 is disposed on the side of the front shell 2. An electromagnetic induction module 31, a signal processing module 32, and a USB interface module 33 are integrated on the main board 3 by soldering or plugging. The cover plate 1 is disposed inside the front shell 2 and is located on the surface of the electromagnetic induction module 31. The electromagnetic induction module 31 is used to capture the writing trajectory and pressure signal of the electromagnetic pen, the signal processing module 32 is used to analyze and process the captured signal, and the USB interface module 33 is used to realize data transmission and power supply between the main board 3 and external devices.

[0016] In one embodiment, the cover plate 1 is made of high-transmittance electromagnetic induction glass or PET induction film, and its edges are attached to the inner wall of the cover 2. This ensures smooth writing operation and a flat appearance of the device.

[0017] In one embodiment, the faceplate 2 is an injection-molded part with a snap-fit ​​flange on its edge that matches the snap-fit ​​groove of the bottom shell 5, enabling the faceplate 2 and the bottom shell 5 to snap together quickly and accurately, thus improving the overall structural sealing. The surface of the faceplate 2 is also provided with a power button 21. The power button 21 is electrically connected to the main board 3 and is used to control the start and stop of the electromagnetic handwriting tablet.

[0018] In one embodiment, the bottom shell 5 is an injection-molded part with several grooves at the bottom. The silicone pad 7 is fixed in the grooves by adhesive bonding. The bottom shell 5 is also provided with threaded holes that are compatible with the fastener 6. The bottom of the bottom shell 5 is also provided with a battery holder 51 that is connected to the motherboard 3.

[0019] In one embodiment, the fastener 6 is a cross-slot screw, which is evenly distributed along the edges of the cover plate 1 and the shell 2.

[0020] Working principle: When in use, press the power button 21 to start the device. The electromagnetic pen writes on the cover plate 1, which is used to carry the writing operation and ensure the stable transmission of electromagnetic induction signals. The electromagnetic induction module 31 is used to capture the writing trajectory and pressure signal of the electromagnetic pen. The signal processing module 32 is used to analyze and process the captured signal. The USB interface module 33 is used to realize data transmission and power supply between the motherboard 3 and external devices. The electromagnetic induction module 31 captures writing information, which is processed by the signal processing module 32 and then transmitted to external devices such as computers and tablets through the USB interface module 33 to realize handwriting input.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic handwriting tablet, characterized in that: It includes a cover plate (1), a front shell (2), a main board (3), a pen sleeve (4), a bottom shell (5), a silicone pad (7), and fasteners (6). The main board (3) is located in the cavity formed by the front shell (2) and the bottom shell (5) and is fixed by fasteners (6). The silicone pad (7) is connected to the bottom edge of the bottom shell (5). The pen sleeve (4) is located on the side of the front shell (2). The main board (3) integrates an electromagnetic induction module (31), a signal processing module (32), and a USB interface module (33) by welding or plugging. The cover plate (1) is located inside the front shell (2) and on the surface of the electromagnetic induction module (31).

2. The electromagnetic handwriting tablet according to claim 1, characterized in that: The cover plate (1) is made of high-transmittance electromagnetic induction glass or PET induction film, and its edge is attached to the inner wall of the shell (2).

3. The electromagnetic handwriting tablet according to claim 1, characterized in that: The face shell (2) is an injection molded part with a snap-fit ​​flange on its edge that matches the snap-fit ​​groove of the bottom shell (5). The surface of the face shell (2) is also provided with a power button (21).

4. The electromagnetic handwriting tablet according to claim 1, characterized in that: The bottom shell (5) is an injection molded part with several grooves at the bottom. The silicone pad (7) is fixed in the groove by adhesive. The bottom shell (5) is also provided with threaded holes that are compatible with fasteners (6). The bottom of the bottom shell (5) is also provided with a battery holder (51) that is connected to the motherboard (3).

5. The electromagnetic handwriting tablet according to claim 1, characterized in that: The fasteners (6) are cross-slot screws, which are evenly distributed along the edges of the cover plate (1) and the shell (2).

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